Sludies on iiiiii'ine Oslrucods 



391 



sometimes, however, the points of the wings do not reach the central point of the tooth; cf. 

 fig. 18. Dorsally of the end comb there are a number (seven to nine, in most cases eight) of rather 

 low, smooth, chitinous pegs, in most cases arranged in two irregular parallel rows running longi- 

 tudinally. The cavity dorsally of the end comb is moderately deep. 



//? ner procea 



of the i nd 

 fxop oinl 



Fig. LXVIII. — Ph. ( Philomedes) globoaa (W. Lilljkborg). — 13. Endilcon tlie loxaloof Iho mandible, seen from outside 

 o; 1000 X. 1 i. Tlie distal joint of the right maxilla seen from inside, ?; 'i6i X. 15. Right fifth limb seen from 

 the front, theexopodite and the third endilc of the protopodite; the bristles of the latter are not drawn. J; 312 X. From 



specimens from Skager Rak. 



F u r c a: — The type of the lamellae and the claws is about the same as that reproduced 

 for Ph. (Ph.) Lilljeborgi in fig. 15. It has nine to twelve, in most cases ten, claws, decreasing 

 fairly uniformly in length posteriorly; the number of the claws is sometimes the same on both 

 lamellae, sometimes different. On the foiu" or five posterior claws there are no long, stiff bristles 



